enhancing ultrasound & photoacoustic for recognition of intestinal abnormalities

Conditions: Inflammatory Bowel Diseases; Ulcerative Colitis; Crohn Disease

Summary: the clinical investigation aims to generate clinical data to support the use of multispectral optoacoustic tomography (msot) in clinical practice, its inclusion in diagnostic guidelines and to support its reimbursement, specifically to * further validate the application with respect to including ulcerative colitis patients * prepare a study protocol for large-scale clinical validation study in inflammatory bowel disease (ibd) * successfully execute the clinical validation study

the clinical investigation, euphoria, will pave the way to establish multispectral optoacoustic tomography (msot) technology for the non-invasive assessment of intestinal inflammation in patients. euphoria will enable commercialization of the technology by finalizing technical improvements that will increase diagnostic outcome beyond what has been shown in a first feasibility study, will improve usability, prepare ce marking for the new device and validate clinical results in a large clinical investigation. inflammatory bowel disease (ibd) is a chronic condition, posing significant burden to patients and health care systems. patients suffer from a relapsing course of intestinal inflammation, and to date, there is no satisfying noninvasive diagnostic modality for monitoring disease activity. in a recent clinical study conducted by university hospital erlangen, msot, a technology developed by ithera medical (itm), has proven to be superior in diagnostic performance to other procedures.

Eligibility criteria:
inclusion criteria: 1. established diagnosis of uc or cd for at least three months prior to enrollment 2. age ≥ 18 years 3. indication for endoscopy according to institutes routine care 4. written informed consent exclusion criteria: 1. stoma independent of localization, ileoanal pouch 2. prior bowel surgery other than ileocecal resection, which potentially affects the study procedure by fundamentally changing bowel anatomy by removing the roi (e.g. (partial) resection of the sigmoid, left sided colon) or repositioning the roi to an inaccessible location (e.g. right-sided colectomy with transversostomy) 3. indeterminate colitis, irritable bowel syndrome (ibs) 4. involvement of the upper gastrointestinal (gi) track only 5. isolated proctitis 6. complications, such as infectious enteritis, infectious colitis and infectious enterocolitis, abscess formation, intestinal obstruction, toxic megacolon 7. tattoo in skin area of interest 8. skin lesions, scar tissue or skin diseases affecting the area of imaging 9. highly pigmented skin in the area of imaging (e.g. fitzpatrick skin type v and vi) 10. the bowel wall is invisible in the ultrasound image of the msot system 11. medication leading to increased light sensitivity 12. pregnant and breastfeeding women 13. mental retardation of the patient with restriction of general judgment and awareness 14. exclusion due to safety concerns of investigator (subject who has any condition, including any physical, psychological, or psychiatric condition, which in the opinion of the investigator, would compromise the safety of the subject or the quality of the data and renders the subject an unsuitable candidate for the study)

Keywords: ibd uc cd